TOKYO — It did not receive extensive industry coverage but at NAB in Las Vegas last month, the NHK Science and Technical Research Laboratories demonstrated virtual satellite ultra-high definition (UHD) TV broadcasts with 16x times higher resolution than current HD images.
NHK terms UHD technology as "Super HiVision" featuring 7680x4320 pixel resolution with progressive scanning at 60 frames per second.
Japan has been assigned the 21-GHz band for future satellite broadcasting.
NHK has not set the specifications for the next generation broadcasting system, but is using Super HiVision as the research base. Presently, the data rate of Super HiVision baseband signal is 24Gbits per second. Using 16 MPEG-2 encoding chips, the signal compressed to 250Mbits per second for transmission. Normal HDTV signals are set at 1.5Gbits per second and 20 Mbits compressed.
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